<div id="signature" class="form-group has-feedback formio-component formio-component-signature formio-component-signature  signature-pad" ref="component">
  <label class="col-form-label ">
    Signature
  </label>
  <div ref="element"><img style="width: 100%;" ref="signatureImage">
  </div>
  <div ref="messageContainer" class="formio-errors invalid-feedback"></div>
</div>